Al Jazeera said the video was of the Apache hit on Friday near Taji in central Iraq.

The authenticity of the video could not be immediately verified.

In December, a spokesman for Khudair al-Murshidi, Saddam Hussein's ousted Baath party, told The Associated Press in Damascus, Syria, that Sunni fighters had received shoulder-fired anti-aircraft missiles and "we are going to surprise them", meaning US forces.

Al-Murshidi did not say when or how the missiles were obtained.

Fighters have used SA-7s, a shoulder-fired missile with an infrared homing device, against US and British aircraft since 2003.